This is a collection of the Educational Testing Initiative (or ETI for short) tests. The ETI is an experiment to show people how the PeTI items work or just to give people ideas for their own PeTI tests. This collection includes several tests about the tes

Six Portals. P.S. NOT SIX FLAGS.

Collection by That One Guy

ITS SIX PORTALS Grab Your Whole Family And Have Some Fun. At Six Flags We Have 3 things 1.Fun Rides 2. Rides that have a 90 percent chance of death 3. And Finally boots that you can fall from any height and not break your legs. ( THIS IS NOT SIX FLAGS I KN

The Best Portal 2 Maps

Collection by LegenDove

Use this handy collection to find top-quality Portal 2 Maps!
This collection is updated frequently and will feature quality maps contructed by fellow Steam members!
Run by NHPSjordan
*If you would like to join me in spotting the best Portal 2 maps, just

GLaDOS's Discarded Chambers

Collection by P-Deak

GLaDOS once created these thest chambers for special test subjects, but, after a certain series of episodes, those tests were lost and almost totally destroyed with time.
After all Enrichment Center has been cleaned up and renewed, the Discarded Test Cham

jj

Collection by PRØAuzzieGamer03

testing track 9251

Collection by ThatguyJosh

hello and wellcome to testing track 9251 all the chambers here were made by jmfpayette we hope you have a plesint time testing for us thank you
coments and feedback is very apreciated thank you i hope you enjoy

Friendship Mechanical Collection

Collection by RICK 100

The collection of series maps from Portal 2 with much work team.
La coleccion de series de mapas para Portal 2 con mucho trabajo en equipo.

Parkour/speed tests collection

Collection by birth

These are my first test chambers

Series 1 - Test Chambers by Jetronic

Collection by Jetronic

Hi, this is my first official collection: Series 1. It will have a total of 5 (FIVE, NOT FOUR) tests, and it will be ready soon
Don't forget to check my Page on Steam, and most importantly, don't forget to send any comments you want.

Your In jail

Collection by Portal 2 GLaDOS

Your In space jail You must Excape! but how???

Matt the Brony's Test Chambers

Collection by Mattdotzig

I made some Test Chambers, play them

My Coop

Collection by <NO_NAME>

My cooperative maps to Portal 2.

The 'Key' Challenge Series

Collection by Jazzyboy

"Greetings, test subject.
We have recently initiated the 'Key' Challenge.
This is a new series of Aperture-developed challenges.
These challenges were designed with you in mind. More specifically, they were designed to manipulate you and then kill

The Aperture Zone

Collection by Herbabotomusfilms

"you unlock this door to a key of imagiation beyond it is another dimention
A dimension of sound
A dimension of sight
A dimension of mind
your moveing into a land of both shadow and substance of things and ideas
you just crossted over into.... The A

Entry-Level Chambers

Collection by The Lil' Orca

Nothing too special; just my first collection of my first attempts of making test chambers. They are not too difficult and I am not fully satisfied with them, but I shall continue to experiment in making new chambers with better challenges.

Perpetual Corridors

Collection by Skyferret

A collection of puzzles based on corridors. These could range from small corridors like hallways leading somewhere like other chambers, or one large corridor divided into sections.

test

Collection by stremfighter

Test

love2scoot workshop

Collection by love2scoot

My varied exploits with the Portal 2 level editor

Australiumfish's Timing Tests.

Collection by Australiumfish

A collection of my Time-based challenges for people who want a challenge that dont require excessive amounts of logic.
Faith Plates, Lasers, Light Bridges, Excursion Funnels (sort of), anything that can have a time challenge made of it, has been done he

The Juggler Chambers

Collection by Mr Beans

You have to use collisions and skill to complete these maps
#F4F

Zep's collection

Collection by TeyoOtter

This collection will generally contain portal 2 maps I make in the new editor. There is a slight chance it will temporarly contain a map made by someone else. It won't be there forever but I am pretty sure steam tells you who made the map so I might just l

This collection includes all my test chambers created with the help of the Lab Rat program, which can be found here:
http://www.kyleschouviller.com/labrat/
I recommend using this program if you need a first aid when creating chambers, as it creates a

I proudly present to you a series of tests which I call: "The Cognitive Gauntlet". Some of these tests were designed to be an extreme challenge, while others were designed for fun, or even for a slight challenge. A helpful hint I can give you in these test

Beautiful Lasers

Collection by Zapperlott

This collection is all about tricky laser puzzles - I will add more maps as i make them
Enjoy! Rate&Comment
Thanks for playing

Mini test collection

Collection by keptn stabzi

This is a collection with no story, so you could call it independent. It is made for those who get bored and want a little something something!
The tests aren't perfect and glamorus, so don't hatw on that! In fact don't hate at all! :D
Remember - if

Running Trials: A Series of Infuriating Timed Jumping Puzzles with an Edgeless Safety Cube

Collection by Crinja

So you think you're all so high and mighty, being able to defeat my other test chambers so effortlessly. All I wanted was to create a sustained testing environment that took more than half an hour to get through. Well ol' crazy scientist Crinja hasn't stop

Epiphanies of Madness - SP

Collection by artao

Here-in you shall find my contributions to the Perpetual Testing Initiative. This collection is all single-player. Regarding difficulty, it's very hard to say; some people may find them easy, others impossible. I try to observe people during beta testing s